Inverter



FIG. 1 is a perspective view of an inverter, showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The broken lines shown represent the portions of the inverter that form no part of the claimed design. 

CLAIM The ornamental design for an inverter, as shown and described. 